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Note 20 - Stock Based Compensation (Details Textual) - USD ($)
12 Months Ended
May 18, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [1]   $ 4.04 $ 5.26 $ 7.17  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross [1],[2]   42,000 2,359,500 268,625  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value     $ 200,000 $ 100,000  
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense   $ 700,000      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options   $ 700,000      
Share Price $ 27.10        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value   $ 23.15 $ 29.75 $ 32.26 $ 32.87
Employee Stock Option [Member]          
Allocated Share-based Compensation Expense   $ 5,600,000 $ 8,100,000 $ 3,300,000  
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense   $ 2,100,000 3,100,000 1,300,000  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition   2 years      
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options   $ 0 100,000 0  
Employee Stock Option [Member] | Equity Incentive Plan 2011 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   5 years      
Restricted Stock [Member]          
Allocated Share-based Compensation Expense   $ 1,900,000 2,000,000 2,700,000  
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense     $ 800,000 $ 1,000,000  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition   2 years 328 days      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized   $ 2,500,000      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Intrinsic Value, Amount Per Share   $ 4,900,000      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Intrinsic Value, Amount Per Share   $ 1,300,000 $ 2,900,000 $ 4,200,000  
Performance Shares [Member] | Equity Incentive Plan 2011 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   3 years      
Share-based Compensation Arrangement by Share-based Payment Award, Average Gross Margin of Home Sales, Percentage, Minimum   15.00%      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value   $ 22.93      
Performance Shares [Member] | Equity Incentive Plan 2011 [Member] | Pro Forma [Member]          
Allocated Share-based Compensation Expense   $ 10,800,000      
Performance Shares [Member] | Equity Incentive Plan 2011 [Member] | 5% to 10% Vesting Threshold [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Target Goal Number of Shares   50.00%      
Performance Shares [Member] | Equity Incentive Plan 2011 [Member] | Minimum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Performance Revenues that Exceed Base Revenues   10.00%      
Performance Shares [Member] | Equity Incentive Plan 2011 [Member] | Minimum [Member] | 5% to 10% Vesting Threshold [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Performance Revenues that Exceed Base Revenues   5.00%      
Performance Shares [Member] | Equity Incentive Plan 2011 [Member] | Minimum [Member] | 20% Vesting Threshold [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Performance Revenues that Exceed Base Revenues   20.00%      
Performance Shares [Member] | Equity Incentive Plan 2011 [Member] | Maximum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Performance Revenues that Exceed Base Revenues   20.00%      
Performance Shares [Member] | Equity Incentive Plan 2011 [Member] | Maximum [Member] | 5% to 10% Vesting Threshold [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Performance Revenues that Exceed Base Revenues   10.00%      
CEO and COO [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross     2,100,000    
CEO and COO [Member] | Nonqualified Stock Option [Member] | Equity Incentive Plan 2011 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 5.35        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years        
Sharebased Compensation Arrangement by Sharebased Payment Award Expected to Vest Immediately Threshold Trading Days 20 days        
Sharebased Compensation Arrangement by Sharebased Payment Award Expected to Vest Immediately threshold Consecutive Trading Days 30 days        
Sharebased Compensation Arrangement by Sharebased Payment Award Expected to Vest Immediately Threshold Percentage of Stock Price Trigger 120.00%        
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 11,200,000        
Chief Executive Officer [Member] | Nonqualified Stock Option [Member] | Equity Incentive Plan 2011 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 1,050,000        
Chief Executive Officer [Member] | Performance Shares [Member] | Equity Incentive Plan 2011 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Target Goal Number of Shares   105,000      
Chief Operating Officer [Member] | Performance Shares [Member] | Equity Incentive Plan 2011 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Target Goal Number of Shares   105,000      
Chief Financial Officer [Member] | Performance Shares [Member] | Equity Incentive Plan 2011 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Target Goal Number of Shares   26,250      
Black-Scholes Option Pricing Model [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value   $ 4.04 $ 4.55 $ 7.12  
[1] Total options granted in 2015 include a total of 2,100,000 Market-Based options granted to our CEO and COO. See further discussion regarding these grants in the "Market-Based Stock Option Awards" section below.
[2] Total options granted in 2015 include a total of 2,100,000 Market-Based options granted to our CEO and COO. See further discussion regarding these grants in the "Market-Based Stock Option Awards" section below.